577694 - Add detection of accessibility instantiation

Status: RESOLVED WONTFIX

(Mozilla Labs Graveyard :: Test Pilot, defect, P2)

Description

[David Bolter [:davidb] (NeedInfo me for attention)]

re: summit chat with Jono X

I'm interested in data on who is using gecko accessibility. To start with here is some code that detects if our a11y engine is instantiated.

function isAccessibilityInstantiated() {
  var enabled;
  try {
    enabled = Components.manager.QueryInterface(CI.nsIServiceManager)
              .isServiceInstantiatedByContractID(
                  "@mozilla.org/accessibilityService;1",
                  CI.nsISupports);
  } catch (ex) {
    enabled = false;
  }
  return enabled;
}

Comment 1

[David Bolter [:davidb] (NeedInfo me for attention)]

Note CI is Components.interfaces ;)

Comment 2

[David Bolter [:davidb] (NeedInfo me for attention)]

Just a quick ping. I'd still like to see this data.

Comment 3

[Jono Xia]

Code added to metadata.js in http://hg.mozilla.org/labs/testpilot/rev/06e4b698b9fd

Correctly reports "false" on my profile, but I need to test it on a build with accessibility instantiation and make sure it reports "true" before I can close this bug.

Comment 4

[David Bolter [:davidb] (NeedInfo me for attention)]

Thanks!

Do we currently collect data on what modules are injected into Firefox's process?

Comment 5

[Jono Xia]

No.  (Not through Test Pilot anyway).  Module loading is much lower level than any of the stuff Test Pilot generally looks at.

Comment 6

[David Bolter [:davidb] (NeedInfo me for attention)]

OK great, we'll provide API for any additional data we're interested in; filed as bug 648121. We'll file a new test pilot bug if/when that happens.

Comment 7

[Jono Xia]

Attachment: Patch integrating David Bolter's code with metadata module

Comment 8

[Jono Xia]

mfinkle: Was this landed?

Comment 9

[Adam Muntner [:adamm] (use NEEDINFO)]

decommissioned